Answer
-42.394
Work Step by Step
$\ \ \ \ \ 4.7$
$\underline{\times9.02}$
$\ \ \ \ \ \ 94$
$\ \ \ \ 00$
$\underline{423\ \ }$
$42.394$
There are a total of 3 decimal places in the factors, so the result has 3 decimal places.
A negative multiplied by a positive is a negative.